Flood-gate.



C. B. JONES.

FLOOD GATE.

APPLICATION FILED oc'r. 7, 1912.

1,066,909. Patented July 8, 1913.

IIIIHIHHIIHI CARL BRUCE JONES, OF NEZPIQUE, LOUISIANA.

FLOOD-GATE.

Specication of Letters Patent.

Patented July 8, 1913.

Application filed October 7, 1912. Serial No. 724,341.

To (IN tlf/mm il? m ay/ Concern Be it known that I, CARL B. dom-1s, acitizen of the United States, and a resident of Nezpique, in the parishof Acadia` and State ot Louisiana, have invented a` new and lmprovedltlood-Gate, ot which the following is a full, clear, and exactdescription.

This invention relates to water distribution and has particularreference to a moans tor securing a constant or regular delivery or Howof water from a reservoir or source ot supply, the depth of which isvariable.

More particularly, this invention consists of a. means t'or deliveringdefinite or regular quantities of water t'rol'n a main canal tor use byparties tributary to such canal for irrigation purposes.

lt is a well known tact that under ordinary mechanical conditions it isimpossible to serve water satisfactorily to a large number ot customersfrom an irrigation canal due to the fact that the conditions of thewater, local or otherwise, produce variations ot level in such maincanal. By the inians herein illustrated it is possible and practical forall of the customers alongI such a canal to be served fairly andsatisfactorily. within the capacity of the canal, the delivery to eachcustomer being the same as for every other customer and regardless otthe water head. Furthermore, the means herein shown is of a compact,strong, reliable and commiratively cheap nature.

The foregoing and other objects of this invention will hereinafter bemore fully described and blaimed and illustrated in the drawingsaccompanying' this siliecitication in which like characters of referenceindicate corresponding parts in both the views, and in which- Figure 1is a vertical sectional view of the device; and Fig. Q is a plan view ofthe float on a smaller scale.

Referring particularly to the drawings, I show at 10 a main body ofwater such as an irrigation canal, and at 11 is a dam or levee throughor beyond which vater is to be fed from the canal to a private party forirrigation of his land. The water in the canal being subject todifferent elevations, it the delivery was to be made through a sluice orgate under ordinary conditions, the torce of the tlow. and consequentlythe amount of water delivered would ary in accordance with the elevationor head of the water in the main canal. In order to overcome the se\eralobJections incident to the aforesaid variations in water delivery, Iprovide a conduit 12 ot bent tubular form and including a verticalportion 1Q having its mouth extending above a maximum high water lineand having its lower substantially horizontal portion projecting beyondthe contines ot the canal. Said lower end is provided with a slide orgate 1? adapted to be operated to either close or open the conduit byany suitable means such as a pull rod 14. The conduit pipe 12 may besecured in place by means ot a brace 15 in connection with the dani orlevee structure or by any other suitable means.

"At l@ is a valve normally closing the lower portion of the conduit fromthe body ot water in the canal but which, by operation ot' a screw 1T,may be opened to admit water into the conduit tor priming or preparingthe construction for practical operation.

At 1S is shown a U-shaped siphon, the legs of which are of equal lengthand closely spaced, one of said legs being extended loosely into theupper end 12 ot the conduit.

float 19 ot' any suitable capacity as to buoyancy and preferably otcircular outline is arranged to floatupon a body of water 10 and isprovided with openings 19 whereby the float at one of said openingssurrounds the vertical part 12 of the conduit, inclosing one of thesiphon legs. and whereby the other siphon leg projects downwardly intothe body ot' water beneath the float. The function of the float is toform a support for the siphon, whereby the ends t'hereot' are maintainedat a substantially fixed distance Ytrom the surface of the waterirrespective of the water level. The manner of supporting the siphonfrom the float is shown as comprising a saddle Qt) having an adjustablescrew Q1 extending upwardly from the center of the float. It is to benoted, therefore, that the construction thus far described is of a wellbalanced sym- `u'ietrical nature and with no points ot frictioualcontact or other devices which would be subjected to damage, orinterference on account ot'A grass, weeds or other debris which may befloating in the water. At or near the upper end ot the siphon is anozzle 22 for the purpose ot applying an air pump or other means forexhausting the air in the siphon as described below.

The operation of the device may be described brietly as follows: YViththe construction above described and arranged as illustrated, in orderto start the operation, the gate 13 will be closed and the valve IG willbe opened, admitting water to till the conduit and siphon up to thelevel of the surface of the water in the canal. An air pump or othermeans will then be applied to the nozzle 22 to exhaust the air from theupper portion of the siphon, the water from the canal entering thesiphon to take the place of such air, after which the nozzle of course,will be closed. The weight of the float and the adjustment of the screw2l will be arranged in accordance with the water conditions or theweight to be sustained by the float, Upon opening the gate I3, the valve16 being closed, the water will liow freely from the conduit 1Q and thewater from the canal will flow through the Siphon into and through theconduit. The siphon being maintained at a constant elevation withrespect to the surface of the water, the low or discharge of water fromthe siphon will be in accordance with such constant elevation regardlessof the elevation of the body of water 10 as a whole.

The several parts of the device may be made of any suitable materialsand the preoise form or design of the saine may be varied to aconsiderable extent without ele-- parting from the spirit of theinvention claimed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent l. In a liood gate for delivering water from a mainbody of water, the combination of a conduit submerged in such body ofwater and having one end projecting laterally therefrom and the otherend projecting upwardly above high water level, means to control thepassage of water from the lower end of the conduit, means to lill theconduit from the body of water, a siphon having` one leg projectingloosely into the upper end of the conduit and the other leg projectinginto the body of water, and means to support the siphon whereby it ismaintained at a uniform elevation with respect to the surface of thewater.

2. In an irrigation llo-od gate, the combination of a conduit having avertically eX- tending open end, a siphon having one leg projectingloosely into said upper conduit end and the other leg extending downwardparallel thereto, and a float surrounding` said conduit and both of saidsiphon legs' and serving to maintain the siphon in operative position todeliver a uniform flow of water through the conduit.

3. In an irrigation flood gate, the combination of a tubular conduithaving one end projecting upwardly, a siphon having one leg projectingloosely into said upper end of the conduit and movable verticallytherein, a float arranged centrally with respect to said siphon andhaving spaced openings extending vertically therethrough, one ot saidopenings surrounding said conduit and the other surrouinling the otherleg of the siphon, and means for adjustably supporl ing the siphon uponthe float.

In testimony whereof I have signed my name to this specification in thepresence of subscribing witnesses.

CARL BRUCE J CNES.

IVitnesses E. C. QUieK, M. Panno'r'r, E. DARPHIN.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents Washington, D. C.

